Comparison

Vernier Caliper Simulator vs Circuit Simulator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Vernier Caliper Simulator

Practice reading a vernier caliper with this free and easy application. Simply slide your finger to grip an object and take your measurement. Enter your guess to see if you're correct and improve your skills.

Highlights
  • Virtual vernier caliper
  • Interactive grip simulation
  • Measurement reading practice
  • Guess and check functionality
  • Skill improvement tool
Features
Read full description

Practice reading a vernier caliper using this free and easy app. Ever wanted to practice reading a vernier caliper but didn't have a set? No worries, now you can practice on your iPhone using this free and easy app. Just slide your finger across to grip the red object and take your reading. Enter your guess and press "Guess" to see if you got it right. Keep practicing and you'll be able to read the vernier caliper like a pro!

About

Circuit Simulator

Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

Highlights
  • Real-time electronic circuit simulation
  • Digital circuit simulation
  • Voltage and current analysis
  • Multichannel oscilloscope
  • Multimeter tools
  • Circuit design and tuning
Features
Read full description

VoltSim is a realtime electronic circuit simulator like Multisim, SPICE, LTspice, Altium or Proto for circuit design with a better user experience. VoltSim is a complete circuit app in which you can design circuits with various components and simulate an electric or digital circuit. During simulation you can check voltage, current and many other variables. Check signals on multichannel oscilloscope or multimeter and tune your circuit in real time! You can also use VoltSim as logic circuit simulator and perform digital electronic analysis! This app will help you visualize how the voltage varies across the circuit and how current flows through it. T&C: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Vernier Caliper Simulator3 screens
Circuit Simulator4 screens

Verdict

The call

The clearest difference is rating: Circuit Simulator at 4.7 against Vernier Caliper Simulator's 1.0. Circuit Simulator also leads on update cadence (every 6 weeks vs every 17 months) and ratings volume (93 vs 2). Vernier Caliper Simulator's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 15.3). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month. Vernier Caliper Simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Circuit Simulator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Circuit Simulator has 93 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of Vernier Caliper Simulator's written reviews are positive against 77% of Circuit Simulator's.

UpkeepUpdate frequency

Vernier Caliper Simulator ships an update every 17 months, Circuit Simulator every 6 weeks. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
Vernier Caliper Simulator versus Circuit Simulator: the parameters behind the verdict, then further details
ParameterVernier Caliper SimulatorCircuit Simulator
PriceFreeFree
Rating1.0 (2 ratings)4.7 (93 ratings) — better
Positive reviews75.0% of reviews76.9% of reviews — better
Number of ratings293 — better
Update frequencyEvery 17 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.3
Further details — not scored
Size12 MB103 MB
Age rating4+4+
DeveloperJiun Wei ChiaSindhu Gopi

Customer experience

Vernier Caliper Simulator

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews12 reviews
Positive75.0%
Neutral8.3%
Negative16.7%

Circuit Simulator

All ratings87 ratings
Positive92.0%
Neutral3.4%
Negative4.6%
Written reviews13 reviews
Positive76.9%
Neutral7.7%
Negative15.4%

In-app purchases

None

Vernier Caliper Simulator

No in-app purchases

8 purchases

Circuit Simulator

Subscriptions1
  • Extensions Subscription$0.991 Month
One-time7
  • Sensors Extension$0.99
  • Custom Chips Extension$1.99
  • Instruments extension$2.99
Show 4 more
  • Analog Extension$3.99
  • Misc Extension$3.99
  • Digital Extension$3.99
  • Extension Pack$12.99

Questions

Is Vernier Caliper Simulator free?
Vernier Caliper Simulator is free to download, with no in-app purchases.
Is Circuit Simulator free?
Circuit Simulator is free to download, with in-app purchases available.
Which has better reviews, Vernier Caliper Simulator or Circuit Simulator?
Circuit Simulator is rated higher. Vernier Caliper Simulator averages 1.0 out of 5 from 2 ratings, while Circuit Simulator averages 4.7 from 93 ratings.
Do Vernier Caliper Simulator or Circuit Simulator have ads?
Neither Vernier Caliper Simulator nor Circuit Simulator shows ads.
Which is updated more often, Vernier Caliper Simulator or Circuit Simulator?
Vernier Caliper Simulator ships an update every 17 months, and Circuit Simulator every 6 weeks. Most recently, Vernier Caliper Simulator was updated on October 22, 2026 and Circuit Simulator on October 27, 2026.

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